COP888EK
8-Bit CMOS ROM Based Microcontrollers with 8k
Memory, Comparator, and Single-slope A/D Capability
General Description
The COP888EK ROM based microcontrollers are highly in-
tegrated COP8
TM
Feature core devices with 8k memory and
advanced features including a Multi-Input Comparator and
Single-slope A/D capability. These single-chip CMOS de-
vices are suited for applications requiring a full featured, low
EMI controller with an analog comparator, current source,
and voltage reference. The COP87L88EK/RK Family de-
vices are pin and software compatible (different V
CC
range)
16k or 32k OTP (One Time Programmable) versions for pre-
production, and for use with a range of COP8 software and
hardware development tools.
Family features include an 8-bit memory mapped architec-
ture, 10 MHz CKI with 1s instruction cycle, three multi-
function 16-bit timer/counters with PWM, MICROWIRE/
PLUS
TM
serial I/O, one analog comparator with seven input
multiplexor, an analog current source and V
CC
reference,
two power saving HALT/IDLE modes, idle timer, MIWU, high
current outputs, software selectable I/O options, WATCH-
DOG
TM
timer and Clock Monitor, Low EMI 2.5V to 6.0V op-
eration and 28/40/44 pin packages.
Devices included in this datasheet are:
Device
Memory (bytes) RAM (bytes) I/O Pins
Packages
Temperature
Comments
COP684EK
8k ROM
256
24
28 DIP/SOIC
-55 to +125C 4.5V - 5.5V
COP884EK
8k ROM
256
24
28 DIP/SOIC
-40 to +85C
COP984EK
8k ROM
256
24
28 DIP/SOIC
0 to +70C
2.5V - 4.0V, EKH=4.0V - 6.0V
COP688EK
8k ROM
256
36/40
40 DIP, 44 PLCC -55 to +125C 4.5V - 5.5V
COP888EK
8k ROM
256
36/40
40 DIP, 44 PLCC -40 to +85C
COP988EK
8k ROM
256
36/40
40 DIP, 44 PLCC 0 to +70C
2.5V - 4.0V, EKH=4.0V - 6.0V
Key Features
n
Analog function block with
-- Analog comparator with seven input multiplexor
-- Constant current source and V
CC
/2 reference
n
Three 16-bit timers, each with two 16-bit registers
supporting:
-- Processor Independent PWM mode
-- External Event counter mode
-- Input Capture mode
n
8 kbytes of on-chip ROM
n
256 bytes of on-chip RAM
Additional Peripheral Features
n
Idle Timer
n
Multi-Input Wake Up (MIWU) with optional interrupts (8)
n
WATCHDOG and Clock Monitor logic
n
MICROWIRE/PLUS serial I/O
I/O Features
n
Software selectable I/O options (TRI-STATE
TM
Output,
Push-Pull Output, Weak Pull-Up Input, High Impedance
Input)
n
High current outputs
n
Schmitt trigger inputs on Port G and L
n
Packages: 44 PLCC with 40 I/O pins, 40 DIP with 36 I/O
pins, and 28 DIP/SO with 24 I/O pins
CPU/Instruction Set Feature
n
1 s instruction cycle time
n
Twelve multi-source vectored interrupts servicing
-- External Interrupt with selectable edge
-- Idle Timer T0
-- Three Timers (Each with 2 interrupts)
-- MICROWIRE/PLUS
-- Multi-Input Wake Up
-- Software Trap
-- Default VIS (default interrupt)
n
Versatile and easy to use instruction set
n
8-bit Stack Pointer (SP) -- stack in RAM
n
Two 8-bit Register Indirect Data Memory Pointers
(B, X)
Fully Static CMOS
n
Single supply operation: 2.5V to 6.0V
n
Temperature ranges: 0C to +70C, -40C to +85C, and
-55C to +125C
COP8
TM
, MICROWIRE/PLUS
TM
, and WATCHDOG
TM
are trademarks of National Semiconductor Corporation.
TRI-STATE
is a registered trademark of National Semiconductor Corporation.
iceMASTER
is a registered trademark of MetaLink Corporation.
OBSOLETE
January 2000
COP888EK
8-Bit
CMOS
ROM
Based
Microcontrollers
with
8k
Memory
,
Comparator
,
and
Single-slope
A/D
Capability
2000 National Semiconductor Corporation
DS012094
www.national.com
Connection Diagrams
Plastic Chip Carrier
DS012094-2
Top View
Order Number COP688EK-XXX/V, COP888EK-XXX/V,
COP988EK-XXX/V or COP988EKH-XXX/V
See NS Plastic Chip Package Number V44A
Dual-In-Line Package
DS012094-3
Top View
Order Number COP688EK-XXX/N, COP888EK-XXX/N,
COP988EK-XXX/N or COP988EKH-XXX/N
See NS Molded Package Number N40A
Dual-In-Line Package
DS012094-4
Top View
Order Number COP684EK-XXX/N, COP884EK-XXX/N, COP984EK-XXX/N or COP984EKH-XXX/N
See NS Molded Package Number N28B
Order Number COP684EK-XXX/WM, COP884EK-XXX/WM, COP984EK-XXX/WM or COP984EKH-XXX/WM
See NS Molded Package Number M28B
FIGURE 2. Connection Diagrams
COP888EK
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3
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V
CC
)
7V
Voltage at Any Pin
-0.3V to V
CC
+ 0.3V
Total Current into V
CC
Pin (Source)
100 mA
Total Current out of GND Pin (Sink)
110 mA
Storage Temperature Range
-65C to +140C
Note 1:
Absolute maximum ratings indicate limits beyond which damage to
the device may occur. DC and AC electrical specifications are not ensured
when operating the device at absolute maximum ratings.
DC Electrical Characteristics 98xEK:
0C
T
A
+ 70C unless otherwise specified
Parameter
Conditions
Min
Typ
Max
Units
Operating Voltage COP98XEK
2.5
4.0
V
COP98XEKH
4.0
6.0
V
Power Supply Ripple (Note 3)
Peak-to-Peak
0.1 V
CC
V
Supply Current (Note 4)
CKI = 10 MHz
V
CC
= 6.0V, t
c
= 1 s
10.0
mA
CKI = 4 MHz
V
CC
= 2.5V, t
c
= 2.5 s
1.7
mA
HALT Current (Note 5)
V
CC
= 6.0V, CKI = 0 MHz
<
4
8
A
V
CC
= 4.0V, CKI = 0 MHz
<
3
4
A
IDLE Current (Note 4)
CKI = 10 MHz
V
CC
= 6.0V, t
c
= 1 s
0.4
1.7
mA
CKI = 4 MHz
V
CC
= 2.5V, t
c
= 2.5 s
0.2
0.5
mA
Input Levels (V
IH
, V
IL
)
RESET
Logic High
0.8 V
CC
V
Logic Low
0.2 V
CC
V
CKI, All Other Inputs
Logic High
0.7 V
CC
V
Logic Low
0.2 V
CC
V
Hi-Z Input Leakage
V
CC
= 6.0V
-1
+1
A
Input Pullup Current
V
CC
= 6.0V, V
IN
= 0V
-40
-250
A
G and L Port Input Hysteresis (Note 8)
0.35 V
CC
V
Output Current Levels
D Outputs
Source
V
CC
= 4.0V, V
OH
= 3.3V
-0.4
mA
V
CC
= 2.5V, V
OH
= 1.8V
-0.2
mA
Sink
V
CC
= 4.0V, V
OL
= 1V
10
mA
V
CC
= 2.5V, V
OL
= 0.4V
2.0
mA
All Others
Source (Weak Pull-Up Mode)
V
CC
= 4.0V, V
OH
= 2.7V
-10
-110
A
V
CC
= 2.5V, V
OH
= 1.8V
-2.5
-33
A
Source (Push-Pull Mode)
V
CC
= 4.0V, V
OH
= 3.3V
-0.4
mA
V
CC
= 2.5V, V
OH
= 1.8V
-0.2
mA
Sink (Push-Pull Mode)
V
CC
= 4.0V, V
OL
= 0.4V
1.6
mA
V
CC
= 2.5V, V
OL
= 0.4V
0.7
mA
TRI-STATE Leakage
V
CC
= 6.0V
-1
+1
A
Allowable Sink/Source Current per Pin
(Note 8)
D Outputs (Sink)
15
mA
All others
3
mA
Maximum Input Current
Room Temp
100
mA
without Latchup (Note 6)
RAM Retention Voltage, V
r
500 ns Rise and Fall Time (Min)
2
V
COP888EK
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